When Pi-hole is down?
Run two and check the logs. You'll see about 20% of your requests will log on the second instance. So currently, that's 20% of your DNS requests not being filtered.
You'll also find some devices just latch on the the second and never use the first - again, in your scenario, these are not being filtered.
Simple guide to setting up Jellyfin+*arr on an OrangePi (ARMbian)
DietPi is the perfect OS with easy install software for Pis of all flavours.
When Pi-hole is down?
That's not how the two entries for DNS works. Devices will use both rather randomly, and therefore some requests will not be filtered.
The best way is to run two instances for redundancy.
bringing back the windows home screen.
Maybe have a look at Win11 Launcher. I reckon it'll get the aesthetic you're looking for.
